How did six Taliban hold off 100 security forces for 16 hours?

[Vehl]

(Reuters) - A Pakistani Navy commando was the first to detect Taliban militants attacking a naval aviation base in the city of Karachi on Sunday night. He was dead within seconds. The small group of militants, as few as six, who attacked the PNS Mehran naval aviation base in Karachi gave its defenders no time.

"You cannot imagine how quick they were," said a Pakistani security official who asked not to be named. "When they entered, one of the Navy commandos saw them and tried to react."

He never got the chance."It was a single shot in the darkness which took his arm off," the official said. "You can imagine how good they were." The commando died on the spot. It was about 10.30 p.m. when he died, and the violence didn't end until 16 hours later on Monday afternoon. It took about 100 commandos, rangers and marines to kill four militants and recapture the base, further humiliating the military. Two militants are believed to have escaped.

more here
http://www.reuters.com/article/2011/05/24/us-pakistan-attack-timeline-idUSTRE74N38820110524

Not only did 6 Taliban held off hundreds of Commandos and security forces for nearly a day, but they also succeeded in destroying 2 Pc3 Orion's and (maybe, reports are contradictory) damaged two more. To add insult to injury, two out of the 6 escaped.

This raises serious questions about the new set of Taliban(?) forces and the support they receive from sections of the military sympathetic to them.(inside assistance is suspected in getting the terrorists into the base). There was another bombing today that killed 32 civilians and police...soon after a similar one yesterday that caused 8 police fatalities. Why is the Taliban very active all of a sudden...I really do not believe the Taliban claim that the Naval base was a retaliationary attack for Osama's death, because attacks like these take a long time to plan..especially the ones carried out with such professionalism inside a very highly guarded base.